Machine for applying a seam-packing composition to can-covers.



J. BRENZINGER. NG A sum PACKING COMPOSITION T0 CAN COVERS.

APPLICMION FILED JAN. I0 918. 1,296,474. Patented Mar. 4,1919.

- I 4 SHEETS-SHEET I.

MACHINE FOR APPLYI lnv entor:

Atty.

J. BRENZINGEEL, MACHINE FOR mums A SEAM PACKING COMPOSITION 1o CAN COVERS. APPLICATION FILED IAN-10. l9l8- Patented Mar. 4,1919.

4 SHEETS-SHEET 2- nyento'r:

J. BRENZINGER. MACHINE FOR APPLYING A SEAM PACKING COMPOSITION T0 CAN COVERS. APPLICATION FILED JAN. I0. \918.

1,296,474. Pmelnted Mar. 4,1919.

4 shins-sneer 3.

J. BRENZINGER.

MACHINE FOR APPLYING A SEAM PACKING COMPOSIJION T0 CAN COVERS.

APPLICAIION FILED JAN.10. SIB- Patented Mar. 4. 1919. A

4 SHEETS-SHEET 4.

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Fairfield, in the county v tainer. Therefore,

adhering to the flange mean.

FOR APPLYING S EAM-?ACKING COMPOSITION TO GAIN-COVEE Specification of Letters Patent.

man, comvnc'rrcvr.

Patented Mar, 4, 1919,

Application filed Ianuary,10,'1918. Serial No. 211,225.

To all whom it may concern: Be it known that I, J nuns Bunnzmcrm, a citizen of the United States, residing .at of Fairlield and State of Connecticut, have invented certain new and useful Improvements in Machines for Applying a Seam-Packin Composition to Can-Covers, of which the ollowing is a specification.

It is well known in the art to which this invention a pertains that can bodies designed to be hea ed by what is known as the doubleseaming rocess are first end flanged, and each he or cover is provided with a corresponding flange adapted to be superposed on the bod flange when the parts are assembled for t e seaming operation, the cover flange generally projecting a slight distance beyond the body flange and the two being intercurled by the seaming operation and the intercurled layers compressed into a substantially solid or air-tight head.

Inherent irregularities in the metal being .operated upon and slight and inevitable imperfections in the seamingmechanism render it desirable, if not essential to the best results, that some form of suitable packing be interposed between the intercurled flanges in order to insure an absolutel hermetic seam. Obviously-considering t e vast extent of the use of containers of the necessity for comparativelygreat producin and output cap-acity-this packing must he easily and readily applied, and it has been found most expeditious and generally satisfactory to apply the form of a; self-hardening liquid or semiliquid composition to the inner sides of the flanges of the covers, so that when it dries it forms what is known as a lining skin, and being yieldingly compressible to perform its desired function. Furthermore, the composition should of course be non-deleterious to the contents of the can, for in spite of every precaution a small portion thereof might be squeezed into the interior of the can, but even. when the material is perfectly harmless it is not desirable that any portion thereof, when the flan are subjected to the forces of the be forced into the conseveral things must be taken into consideration in attempting to provide a machine for applying this ini-. tially liquid or semi-liquid compound to the seaming mechanism,

this class and f same in the y 7 lesser d' Iner in w 1ch the composition is flanges of can heads or covers; first, the

quantity delivered must be capable of being regulated to a nicety, any excess being apt to be squeezed into the container and any deficiency being likely to prevent the formation of a perfectly air tight seam; second, in applying the compound to each head or cover, the distribution thereof should be substantially uniform, for lack of uniformity of distribution would be subject to the same objections sis-the delivery of an excessive or adeficient uantity; third, any socalled lining mac ine, to be of any ra'otical use, must have a comparatively arge output capacitythat is to say, must be capable of being operated at comparatively very high velocity and yet insure uniform delivery of the proper quantity of the lining composition.

The more common type of machine at present employed for lining can heads or covers includes a conduit or passage from a suitable source of supply and which terminates in a nozzle from which the liquid or semi-liquid composition is discharged upon the edge of a head or cover rotated underneath the same, means being provided to regulate the volume of the discharge and to automatically start and stop the same at proper intervals. controlled, as a rule, by the positioning in and ejectment from the machine of a head or cover underneath said nozzle. In spite of its extensive use there are many objections to this type of machine, among which may be mention first, in view of the initial consistency and the selfhardening quality of the composition employed, it is very difficult to prevent the clogging orchoking u of the conduit and discharge nozzle, particularly when use of the machine has been temporarily discontinued; second, in view of the difficulty of keeping the composition in a heated-condition---and the practical impossibility of keeping it at a substantially constant or uniform high temperatureit is necessary to employ in a machine of this type a composition which includesa solvent, hardening evaporation of the solvent, which is relatively very volatile, such a composition being far less to be desired than one which liquefies upon the application of heat and hardens to a greater or ee upon cooling; third, the manhandled or taking place upon the solution above, I have in manipulated repair or replacement.

derstood by reference in a machine of this t quality of viscosity in erent in which it is necessary to eniploy, renders it practioallyimpossible to prevent the smearing of parts of the machine an the heads or coversbeing lined. The present, invention has in view the provision of an improved and entirely'new and different type. of machine for applying a sidering the l ning composition to can heads or covers,

one of my principal objects being a machine capable of bein operated at comparatively very high speed without substantial variance in the quantity of the liquid or semiliquid composition delivered to each head or cover or lack of the'required degree of uniformity of distribution. Incidental to the view the provision of a ma-' chine articularly adapted for the application of a composition which is a liquid or semi-liquid when in a heated state and harldens upon cooling, which, as hereinbefore suggested, is 'a much better composition for all ractical purposes than one which inclu es a volatile solvent. Furthermore, this invention contemplates a machine of the utmost-simplicity, mechanically, dependable in operation, not likely readily adjustable to sizes, and with parts can heads of various My inventionwill be more readily unto the accompanying drawings, forming a part of this specification, in which I have illustrated a practical and convenient embodiment of said invention, and in which- Figure 1 is an end elevation of a machine embodying my invention;

Fig; 2 is a similar view ofthe opposite end t ereof;

Fig. 3 is a perspective plan ta en as indicated by the line 33 of Fig. 1; Fig. 4 is an enlar ed transverse section of the same, taken s'u stantjally on the line 4'4 of Fig. 3, and

Y 5 and 6 are fragmentary sectional 'detailviews showin the relative disposition of the curled ange edge of a cove-r being lined and, the roller, the flanges being curled to different de ees. y

eferring now to the drawings in detail, I have sh'owjn a heavy supporting frame which comprises the top member 7 provided with legs 8 and 9. I prefer to'provide the relatively large ribs 10 and 11 on the top face of t e member 7, mounted in which are the posts1 2 12 and 13 13 carryingat their upper ends the relatively elongated tank 14 adapted to contain a suitable lining com-. position in liquid or semi-liquid form. Passing longitudinally through the tank 14 and suitably journaled in the end Walls thereof is the shaft 15 pe, con- 7 'main driving shaft 17,

source of power.

to get out of order,

easily accessible for view thereof,

-' the sheave 36.

periphery of the feedmounted upon which,

within-the tank, is thecylinder or roller 16 so located as. of'said tank.

The feed-roller 16 is rotated from the the latter being suitably journaled in bearings in the bracket 18 mounted on the top-member 7 of the sup to dip intothe liquid contents porting frame and having mounted thereon the stepped pulley neoted in the usual 7 Mounted at the other end of the shaft 17 is a pinion 20 in mesh with a gear '21 on a short shaft 22 which also carries the pinion 23 in mesh with a inion 0r gear 24 on the roller shaft 15, w ereby the roller 16 is rotate Bolted to thesidewall of the tank 14 are the bracket-arms 25 and 25 at the ends of which is mounted the plate 26. At one end of the plate'26 is journaled the shaft 27 and at the other end the shaft 27, these shafts carrying the pulleys 28 and 28, respectively.

, ound these pulleys is passed the belt/30, the inside leg of which is adapted to impinge against a can head or cover 29 interposed between said belt and the roller 16, as. shown in Figs. 3 and 4. In orderto adapt the machine to can heads of'difierent diameters, I have shown the plate 26 adjustably mounted on the bracket-arms 25 and 25', the latte-r being provided with slots 31 and 32, respectively, throu h which pass screw-bolts 33 and 34, where y the distance from the insideleg of the be t 30 to the roller 16 may be varied. l

While one or the other of .the pulleys 28 and 28 mi ht be an idler, I prefer that both of the shafts 27 and 27" be driven, and for this purpose I mount upon the shaft 17 a sheave 36 for driving the rope-belt 37 which passes therearound, thence around an idler sheave 38 On the shaft 27 thence under and 19 adapted to be conmanner to any suitable v around the she-ave 39 fixed upon the shaft 27,-thence over and around the sheave.40 fixed upon the shaft 27, and thence back to I have shown the end walls 41' and 41 of the tank 14 with recesses in the top edges thereof which provide inclined surfaces for the support of the bar 42, which is one of a pair of track-bars, the other 13 of which is carried by the. bracket-arms 25 and 25' through the interposition of the cylindrical spacers or supporting members 44 and 44'. Mounted at the ends of-the track-bar 42 are the bracket-arms 45 and 45' which carry the upper guide-bar 46 the lower face of which is spaced above the plane of the upper faces of the track-bars 42 and 43, a trifle more than the thickness of the usual can head "or cover. v Mounted. upon one end of the track-bars 42 and 43 is the base or bottom 47 of a coverfeed chute which includes 48 and 49, the latter being extended as shown the side-guides Y v tween the belt 30 and the roller 16 inclination as the track or run-way to direct the covers beand to engagement by the former. At the o pbsite end-of the track-bar 42' is secured t e base or bottom 50 of the cover discharge chute which includes theside-guides 51 and 52, the latter being bent, as shown, to receive the heads or covers which have been advanced by the belt 30 and direct thesame to said chute. It will be noted that both the feed and the discharge chutes have the Sim}? inFig. 3 and serving comprises the bars 42 and 43.

The composition within the tank 14 may be kept at the desired high temperature in many different ways, but for purposes of explanation I have shown a gas-pipe 53, de-

' signed to be connected in the usual manner with a suitable source of fuel-g-as sup ly and provided with a series of jets or urners 54 54 so positioned as to' direct the'flames against the bottom of the tank. I have also shown a wiper or scraper 55 adjustably sechute 50. During 'ment of the cover,

cured to the top of the tank. and provided with' an edge in contact with the rotating roller 16 to remove the surplus material which adheres to said roller, so that only a comparatively thin film thereof remains.

T heads or covers beingl fed successively into the upper end of the 0 ate 47, it will be apparent that they will be conveyed by avity to position between the inside leg of the belt 30 and the periphery of the roller 16. The belt 30 being yielding, the edge of the cover will be pressed against the rotating roller and at the same time the cover will be revolved toconvey the same along said roller in the direction of the discharge such rotative advancethe edge of the curled flange 56 will scrape 16 a certain amount of the composition 1n the'form of a film thereon, the composition being uniformly deposited along said flange within which it adheres to provide the usual lining skin for the pur 'oses set forth.

The flanges of canhea ,s or covers adapted to be secured to body portions by the double-seaming process are sometimes rectangularly bent or turned, as shown in Fig. 5, and sometimes have the edges thereof mturned, as shown in Fig. 6. In either case, the disposition of the cover, supported upon the track-bars 42 and 43 and below the guide-bar 46,. relative to the periphery'of the roller 16 is such that the extreme edge onl of the flange contacts with the roller, an ;with the wiper or scraper 55 properly adjusted no composition will touch the cover elsewhere than within the flangegroove, in consequence of which the belt 30. will be kept clean and there will be no smearincr of any of the arts of the machine.

have found rom experience that the machine of my present invention may be erated. thereby,

' chute for directing from the rotating roller for applyin to flange. In fact, proper delivery ofthe composition is insured with the machine running as rapidly heads or covers into the chute 47. In fact, it'is essential to best results that the belt 30 be driven at. such velocity that the speed of the cover being delivered thereto is acce whereby the covers, which impinge against and support each other in the chute 47, are suitably spaced apart durin transit along. the cylinder or roller 16.

' any modifications of minor details of my improved machine for applying a seampacking to 'can covers will doubtless readily suggest themselves to those skilled in the art to which it appertains, and I therefore do not desire to limit my invention to the specific construction herein shown and described. I

I claim as new and desire Letters Patent:

1. In a machine for applying a seampacking composition to can covers, the combination, with a rotating cylinder and means for applyin to the cyl ndrical face thereof a substantia ly uniformliquid film or coating, of *a slideway paralleling said cylinder and adapted to sup ort a can end or cover through a flat side thereof with its edge directed against said cylinder, means for pressing said cover edgewise against said cylinder and at the same time imparting rotary movement to said cover whereby it is rolled along said cylinder, and a guideway ravity-actuated covers successively to said slideway and between said 0 linder and said rotating means.

2. n a machine for applying a seamacking composition to can covers, the comination, with a rotating cylinder and means for applyin to the cylindrical face a substantia ly uniform liquid film or coating,

to secure by of a slideway paralleling said cylinder and adapted to support a can end or'cover thereof as it is possible to feed D through a flat side thereof with its edge directed against said cylinder, yielding means for pressing said cover edgewise against said cylinder'and at thesame time imparting rotary movement to said cover whereby it is rolled along said cylinder, and a guideway chute for directing successivel to said slideway .and' between said 0 lin er and said-rotating means.

3. in a machine for applying a seampacking com osition to can covers, the combination,wit arotating the cylmdrical face thereof a substantia 1y uniform liquid film or coatin of a slideway laterally inclined toward sald cylinder and extending substantially the len h thereof whereby the edge of an oblique y-disposed can cover on said slidecylinder and means v way is directed against said cylinder, means 7 for pressing said cover edgewise against said cylinder and atv thesame'time imparting rosuccessively said cylinder, and a guideway irecting gravity-actuated covers to said slideway and between I said cylinder and said rotating means,

' ing of a guideway chute for actuated ing rotary movement to said means, said guideway 4. In a machine for applying a seamacking composition to can covers, the comination, with a rotating cylinder and means for applying to the cylindrical face thereof a substantially uniform liquid film or coata slideway laterally inclined toward said cylinder and extending substantially the length thereof whereby the edge of an obliquely-disposed cover on said slideway is directed against said cylinder, yiel ing means for pressing said cover edgewise against said cylinder and at the same time imparting rotary movement to said cover whereby it is rolled along said cylinder, and a guideway chute for directing gravity actuated covers successively to said slideway and between said cylinder and said rotatin means. 7

5. n a machine for applying a seampacking composition to can covers, the combination, Wit a rotating c linder and means for applyin to the cylm rical face thereof a substantia l uniform liquid film or coating, of a slid eway paralleling and slanted toward said cylinder and extendin substantially the len h thereof where y the edge of an oblique y-disposed cover on said slideway is directed against said cylinder, means for pressing said cover edgewise against said cylinder and at the same time imparting rotary movement to said. cover whereby it is rolled along said cylinder, and

directing gravitycovers successively to said slideway and between said cylinder and said rotating bein disposed at an angle to said slideway an thereof corresponding to the slant of said slideway.

6. In a machine for applying a seampackmg composition to can covers, the combination, with a rotating 0 linder and means for applying to the cylm rical face thereof a substantially uniform liquid film or coating, a slideway paralleling said cylinder and extending substantially the length there of whereby the edge of a cover on said slideway is directed against saidcylinder, means for pressing said cover edgewise against said cylinder and at the same time impartit-is rolled along said cylinder, and a guideway chute for dlrecting gravity-actnated the inclination cover whereby covers successively ,to said ,slideway and between said cylmder and saldrotating means,

the velocity of the driven rotating means being proportioned relative to the inclination of semi chute to exceed the delivery of 1 covers from said chute, whereby said covers are spaced apart during the composition applying operatlon.

In a machine for applying a seams acking com osition to can covers, the com ina-- tion, wit

substantially locity of the driven rotating means being proportioned relative to the inclination of said chute to exceedthespeed of delivery of covers from said chute whereby said covers are spaced apart during the composition-applying operation.

In-a machine for applying a seam-packing composition to can covers, the combination, with a rotated cylinder and means for applying to the cylindrical face thereof a substantially uniform liquid film or coating,

' of 'a slideway paralleling said cylinder and extending beyond each end thereof, sald slideway being adapted to su port a can end or cover through a flat side t ereof with the edge directed against said cylinder, a pulleydriven endless belt paralleling said slideway on the side thereof opposite said cylinder and adapted to engage the edge of a cover and roll the latter-along said cylinder, and

means for delivering covers successively to said slideway between one end of said cylinder and the belt-carrying pulley at that end. thereof, whereby each cover is subjected to yielding forces only during advancement thereof. 5

In testimony of the foregoing, I have here unto set my hand in the presence of tw witnesses.

JULIUS eannzmenn.

Witnesses:

NIonoLAs F. DYnUrr, RosnM.

whereby the edge of and a guideway a rotating cylinder and means for applying to the cylindrical face thereof a 

